Oil burner



Oct. 20, 1936. D. H. WAsHBuRN OIL BURNER Filed gul 15, 1953 0 H 2 m a n 0 M 2 m m m Ia U m U u. U M d m b .W/ my a m .u 6 9 2 2 5 2 W 2 I u n m 4. f 1 3 1 a m 2 m 1 INVENTOR fzzu7'7b D nald M ATTOR Y Patented Oct. 20, 1936 OIL BURNER Donald H. Washburn, Babylon, N. Y., assignor to Rotor Oil Burner Corporation, New York, N. Y., a corporation of New York Application July 15, 1933, Serial No; 680,581

7 Claims.

This invention relates to oil burners, and particularly to the construction of the hearth or burner ring of the hearth; and the object of the invention is to provide a burner ring disposed 5 adjacent the peripheral wall of the firebox of a furnace or boiler adjacent the lower end of the water jacket or leg of the boiler so as to provide a flame which will extend vertically of the wall of the furnace, producing the most eliicient and 10- practical type of burner for apparatus of the class described; a further object being to provide a burner ring including a base portion, a vertical perforated wall portion forming the burner wall or flange proper of the ring and a grooved or 15 channel portion in which the oil discharged from a rotary burner head will collect in the initial starting of the burner; a still further object being to provide a device of the class described wherein the base portion of the ring is'so constructed as 2 to engage the peripheral wall of the firebox and serve to space the vertical wall or flange a predeterimned distance from the firebox wall so as to properly position the "flame of the burner with respect to said Wall; a still further object 2'5- being to provide a. burner ring which is constructed from sheet metal renderingit simple and economical in construction, as Well as simplifying the installation of the ring and the construction of the entire hearth, as well as facilitating the go removal of the ring for cleaning. replacement and other purposes; and with these and other objects or a furnace diagrammatically illustrating a rotary burner and showing part or the hearth 45 construction with one of my'imp'roved burner rings thereon.

Fig. 2 is an enlarged, sectional and perspective view of part-pf the ring shown in Fig. 1. Fig. 3 is a view similar to Fig. showing a 50 modification.

Fig. 4 is a view similar to Fig. 2 showing another modification; and, v

Figs. 5,6 and '7 are face views of rings similar to that shown in Fig. 2 but showing different ar- 5 rangements of apertures or perforations therein.

For the purpose of illustrating one method of carrying my invention into effect, I have shown in Fig. l of the drawing, a part of a furnace l0, upon the base I I of which is arranged the usual water leg or manifold 12, the inner wall l3 'of which borders the flared box or combustion chamber 14 of the furnace, which in the construction shownfis separated from the ash pit 15 by a hearth plate 16 of any suitable refractory material. 'Ihe hearth plate 16 extends from the upi per end of a rotary oil burner 41' outwardly to a supporting flange 'l 8 on the base H.

The burner ll includes a revolving fuel dis charge head N] from which fuel oil supplied to the burner through a pipe '20 and air supplied through openings 20a are discharged over the Y surface of the hearth plate l6 into engagement with one of my improved burner rings2l. The burner may be of any desired form and construction, such for example, as a burner as -dis-' closed in my prior application, 'Serial Number 625,092, filed July 27, 1932. The burner arihg 24 in the construction shown is fashioned fromsheet metal and includes a bottom or base portion 22 having at its free end an upturnedflange 23' 215-- which is adapted to engage the wall l3 so as to space the vertical burner wall or flange 24 a predetermined distance from the wall I 3 to pro-- duce the desired and most efficient arrangement of the frame with respect to the wall so that the greatest possible amount of heat may be utilized in heating the water or the water leg I2 and to maintain said water at the desired temperature for the successful operation of the furnace, and

to further accomplish this result by the least amount of fuel.

The vertical wall or flange 24 joins the base 22 through an upwardly and inwardly extending Wall part 2-5 and a downwardly and inwardly extending wall part 26. The part 25 in conjunction with the wall 24 forms a groove or channel 21 in which oil may collect in initially starting the burner, and the oil so collected may be ignited through suitable igniting means commonly'employed in apparatus of this class and which forms no part of my present invention.

It will also be apparent that the flange .23 and the vertical wall 24 forms another channel 28 upon the surface of the base 22 outwardly of the 7 wall 24, in which oil that may pass through the apertures or perforations 29 in-the wall 24 may be collected, and this oil will be ignited and burned in the same manner as the oil collected in the groove or channel 21.

With the type of ring shown in Figs. 1 and 2 of the drawing, it will be understood that the oil or vapor discharged from the burner head I9, will either strike directly on the wall 24 or pass over the wall 26 and the major part thereof originally collect in the groove 21, although some may pass through the apertures 29 and collect in the channel 28. However, after the burner has been started and the ring heated by virtue of the burning oil, a blue flame will be formed and generated at the top of the wall 24, preferably at the top of the rear surface thereof, to extend up along the inner wall 13 of the boiler, the apertures 29 operating to break up the flame into a multiplicity of nozzles or burner eIements it being understood, however, that the flame arising from said so-called nozzles will diverge and form a substantially annular flame around the fire box and in close proximity to the wall thereof. It will be apparent that the oil vapor and air form a combustible gas which is burned from the top of the ring.

It will be understood that the air and oil vapor mixture forms at the ring a combustible mixture, and during the operation of the burner, the flame arising from this mixture will continue to burn over the ring and above the surface of the hearth proper. This method of burner operation keeps the flame well away from the burner head and concentrates the flame initially on the furnace wall, after which it will pass upwardly through the entire firebox and around the usual water jackets and out through the flue.

In Fig. 4 of the drawing, I have shown at 2la a slight modification of the structure shown in Fig. 2, wherein the wall 24a includes at its lower end large openings 30 so that the oil will not collect in the groove or channel as 21 in Fig. 2, but will pass into the channel 28a formed upon the upper surface of the bottom plate 22a between .the wall 24a and the flange 23a. With this form of construction, it will be apparent that in initially starting the burner, the oil will burn in the channel 28a outwardly of the wall 24a. In this connection, it will be understood that some of the flames will pass through the apertures 29a.

The general structure of the ring shown in Figs. 5, 6 and '7 may be identical with that shown in Figs. 2 and 4, or in fact, with that shown in Fig. 3, excepting that instead of providing vertically arranged single apertures 29, 29a, the ring Zlb shown in Fig. 5 has its wall 24b provided with two rows of vertically spaced apertures 3| arranged and spaced longitudinally of the wall 241). The ring 2 lo shown in Fig. 6 of the drawing has single apertures 32 arranged angularly to the vertical instead of perpendicular. The ring 2Id. shown in Fig. '7 of the drawing has a series of vertically spaced circular apertures 33. At this time, it will be understood that other forms and arrangement of burner apertures may be provided, it being understood that the purpose of these apertures is to break up the combustible mixture to produce better vaporization and a more desirable flame.

In Fig. 3 of the drawing, I have shown at 34 a ring which differs from the ring shown in Fig. 2, primarily in that the vertical wall 35 having the apertures 36 has its upper end bent or flared inwardly as at 31, and this bending or flaring may be varied as to angularity to suit different types of furnaces and will, to certain degrees, control the flame or the character of the separate flames as they extend from the upper end of the ring or the apertures 36 therein. 1

With this construction, the wall 35 joins the bottom wall 38 through an outwardly and upwardly curved portion 39 forming an oil trough 40 similar to the groove or channel 21 and the wall 39 is rounded at its inner side and curved downwardly as at 4|, the bottom wall 39 having at its outer end the upturned flange 42 similar to the flange 23. In this connection, it will be understood that the rings 2| and 2la. as well as the rings 2lb, 2lc and 2| d may all be fashioned .with their upper ends curved or flared as seen at 31 in Fig. 3 of the drawing.

My improved ring construction may be fashioned to conform with the contour of any kind or class of furnaces and boilers, and it will also be apparent that the ring may be composed of a plurality of sections or parts coupled together to form a continuous or substantially continuous ring, for example, two straight sections a, a may be' coupled with an angular or curved corner section I), as indicated at c, the edges of the sections abutting and being keyed together by pins d fitting within the chambers formed between the walls 22, 25 and 26, or any other means of attaching the sections together may be employed.

While I have shown certain details of construction for carrying my invention into effect, I am not necessarily limited in these respects, and various changes in and modifications of the construction herein shown and described may be made within the scope of the appended claims without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. A burner ring of the class described fashioned from a strip of sheet metal, one side of which is fashioned to form an outer flange, the other side portion of the strip being folded inwardly upon itself and then angularly thereto to form a vertically arranged wall portion inwardly of said outer flange, and said vertical Lvall portion having longitudinally spaced aperures.

2. A burner ring of the class described fashioned from a strip of sheet metal, one side of which is fashioned to form an outer flange, the other side portion of the strip being folded inwardly upon itself and then angularly thereto to form a vertically arranged wall portion inwardly of said outer flange, said vertical wall portion having longitudinally spaced apertures, and the upper end of said vertical wall being flared inwardly.

3. A burner ring of the class described, said ring comprising a strip fashioned to form a bottom wall, a vertical perforated wall forming a continuation of one side edge of said strip and disposed intermediate the side edges of the bottom wall, said strip having an oil receiving channel adjacent to and longitudinally of said vertical wall and the perforations of said vertical wall being disposed in close proximity to each other and spaced longitudinally of the strip, and said bottom wall extending outwardly beyond the vertical perforated wall to space said vertical wall a predetermined distance from the wall of a furnace firebox in connection with which the ring is employed.

4. A burner ring of the class described, said ring comprising a strip fashioned to form a bottom wall, a vertical perforated wall forming a continuation of one side edge of said strip and disposed intermediate the side edges of the bottom wall, said strip having an oil receiving channel adjacent to and longitudinally of said vertical wall and the perforations of said vertical wall being disposed in close proximity to each other and spaced longitudinally of the strip, said bottom wall extending outwardly beyond the vertical perforated wall to space said vertical wall a predetermined distance from the wall of a furnace firebox in connection with which the ring is employed, and the upper end of said perforated wall being flared inwardly with respect to said ring.

5. A burner ring of the class described, said ring comprising an elongated strip-like body fashioned to form a bottom wall having upwardly extending side flanges forming on the upper surface of the bottom wall a channel, one of the side flanges extending inwardly, downwardly and upwardly over the bottom wall to form, intermediate the side edges of the bottom wall, a vertical perforated wall, and a channel at the base of and extending longitudinally of said vertical wall.

6. A burner ring of the class described, said ring comprising a strip fashioned to form a bottom wall and a vertical perforated wall forming a continuation of one side portion of said bottom wall and disposed intermediate the side edges of the bottom wall, said strip having an oil receiving channel adjacent to and longitudinally of said vertical wall and partially formed thereby, and the perforations of said vertical wall being disposed in close proximity to each other and spaced longitudinally of the strip.

'7. A burner ring of the class described, said ring comprising an elongated strip-like body fashioned to form a bottom wall having upwardly extending side flanges forming on the upper surface of the bottom wall a channel, one side flange extending inwardly, downwardly and upwardly over the bottom wall to form intermediate said side flanges a vertical wall having longitudinally spaced apertures, a channel at the base of and extending longitudinally of said vertical wall, and the upper end of said vertical wall being flared in the direction of that side of the ring having the first named side flange.

DONALD H. WASI-IBURN. 25 

